{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "A variety of inorganic nanoparticles can be grown on the surface of nano - graphene , obtaining functional graphene - based nanocomposites with interesting optical and magnetic properties useful for multi - modal imaging and imaging - guided cancer therapy ."}
{"Chemical": ["graphene"]}